1. The Superficial Cervical Plexus Block for Postoperative Pain Therapy in Carotid Artery Surgery. A Prospective Randomised Controlled Trial 
M. Messner, S. Albrecht, W. Lang, R. Sittl, M. Dinkel 
European Journal of Vascular and Endovascular Surgery 
Volume 33, Issue 1, Pages (January 2007)
DOI: /j.ejvs
Copyright © 2006 Elsevier Ltd Terms and Conditions

2. Fig. 1 Flow diagram of patients throughout the trial.
European Journal of Vascular and Endovascular Surgery  , 50-54DOI: ( /j.ejvs )
Copyright © 2006 Elsevier Ltd Terms and Conditions

3. Fig. 2
VAS consisting of a 10-cm line with the anchor points, “no pain” and “worst possible pain”.1
European Journal of Vascular and Endovascular Surgery  , 50-54DOI: ( /j.ejvs )
Copyright © 2006 Elsevier Ltd Terms and Conditions